A short-flow forming process for high-tin bronze wire
A technology of high-tin bronze and forming process, which is applied in the field of short-process forming process of high-tin bronze wire, can solve the problems of difficult processing of high-tin bronze and low production efficiency, and achieve reduction of processing passes, low production cost and high efficiency high effect
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Embodiment 1
[0014] Embodiment 1: φ1mm Sn content is the tin bronze wire material forming process of 8.5%wt
[0015] The tin bronze (Sn content is 8.5%wt) wire billet is prepared by horizontal continuous casting method, the temperature of the molten metal is controlled at 1100°C during casting, and the diameter of the billet is φ10mm; The amount is gradually increased, the maximum temperature in the deformation zone is set to 650°C, the drawing speed is set to 1mm / s, the distance between the cold and heat sources is 12mm, water cooling is adopted, the heating zone is protected by nitrogen, and it is drawn to φ2mm through multiple passes Wire material; the surface of the wire material is cleaned with dilute nitric acid; the tin bronze wire material after cleaning is drawn to φ1mm by multiple passes, and the deformation amount of each pass is 10-25%. Annealing treatment under the protection of hydrogen for 0.5h.
Embodiment 2
[0016] Embodiment 2: φ0.8mm Sn content is the tin bronze wire material forming process of 13%wt
[0017] The tin bronze wire billet with Sn content of 13%wt is prepared by horizontal continuous casting method, the temperature of molten metal is controlled at 1060°C during casting, and the diameter of billet is φ10mm; Gradually increase, the maximum temperature in the deformation zone is set to 650°C, the drawing speed is set to 0.7mm / s, the distance between the cold and heat sources is 12mm, water cooling is adopted, the heating zone is protected by nitrogen gas, and drawn into φ1 through multiple passes .8mm wire; the surface of the wire is cleaned with dilute nitric acid; the cleaned tin bronze wire is drawn to φ0.8mm through multiple passes, and the deformation of each pass is 10-25%. When the cold deformation reaches 60%, the Annealed at 570°C / 0.5h under the protection of hydrogen.
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